1. Given the following, determine the expected sales on September 18th and September 19th, using a 3- day weighted moving average. 2. Is your weighted moving average result higher or lower than if you had simply done a 3-day moving average? What caused it to be higher or lower? MONTH DATE ACTUAL SALES IN DOLLARS SEPTEMBER NEHE6789 12 13 14 15 16 17 18 19 $1,500 $2,500 $2,500 $3,500 $3,000 $4,500 W1 = 10 W2 = 25 W3 = 30